The Airtime interface is pretty cool, but the struggle various social start-ups face is that they need to convince people why they need to join yet another social network. If Facebook bought it and incorporated it into its existing platform, that might be a way forward for Airtime. Google made a bet on promoting Google+ Hangouts, and I think its paying off.
This whole episode is upsetting and troubling. The Minnesota Office of Higher Education is like a dictatorship that doesn't want to give up control of its domain.